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&lt;!-- @page { margin: 2cm } --&gt; &lt;p class="western" align="justify"&gt;No presente trabalho foi realizado o levantamento das plantas daninhas nas culturas de algodão, arroz, café, milho, soja e nas pastagens de &lt;em&gt;Brachiaria decumbens&lt;/em&gt;, &lt;em&gt;Hyparrhenia rufa&lt;/em&gt;, &lt;em&gt;Panicum maximum&lt;/em&gt; e &lt;em&gt;Brachiaria humidicola&lt;/em&gt; em 65 municípios de 12 microrregiões do Estado de Goiás, entre janeiro de 1980 e julho de 1981, num total de 275 observações para 59 espécies de plantas daninhas identificadas.&lt;/p&gt;<br>&lt;!-- @page { margin: 2cm } --&gt; &lt;p class="western" align="justify"&gt;A survey was made of weeds found in cotton, rice, corn and soybean fields and coffee plantations, and also in pastures composed of the following grasses: &lt;em&gt;Brachiaria&lt;/em&gt; &lt;em&gt;decumbens&lt;/em&gt;, &lt;em&gt;Hyparrhenia rufa&lt;/em&gt;, &lt;em&gt;Panicum maximum&lt;/em&gt; and &lt;em&gt;Brachiaria humidicola&lt;/em&gt;. The study was carried out between January 1980 and July 1981, in a total of sixty-five counties within twelve micro-regions in the State of Goiás. Fifty-nine of known species of weeds were identified in a total of two-hundred and seventy-nine observations.&lt;/p&gt;